Anti-Mueller and anti-FBI themes are a daily feature of Fox's pro-Trump talk shows.
Hannity was trying to host one of those segments on Monday night when guest Alan Dershowitz brought up the Cohen predicament.
"I really think that you should have disclosed your relationship with Cohen when you talked about him on this show," Dershowitz said.
Hannity responded by saying it was a "minimal" relationship.
Dershowitz said "you had the right, by the way, not to have your identity be revealed," and Hannity agreed: "I have the right to privacy. I do."